CVE-2026-11403 Nexus Repository Manager - Insufficient Entropy in Format-Specific API Key Generation
Insufficient entropy in API key generation allows attackers to guess keys and gain unauthorized access to repository operations as a targeted user.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-11403?
CVE-2026-11403 is a high-severity vulnerability in Sonatype Nexus Repository Manager, published on 14 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in Sonatype Nexus Repository Manager's format-specific API key generation may allow a remote attacker to gain unauthorized access to repository operations as a targeted user. A format-specific API key realm (NuGet API Key, Docker Bearer Token, or npm Bearer Token) must be enabled and the targeted user must have an active API key for this vulnerability to be exploitable.
Weakness: CWE-331
Which versions are affected by CVE-2026-11403?
It affects 1 product.
Products include Sonatype Nexus Repository Manager.
How do I fix CVE-2026-11403?
No fix has been published for CVE-2026-11403 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-11403 being exploited?
There is no known exploitation of CVE-2026-11403 in the wild and no public exploit code.
Other vulnerabilities in Sonatype Nexus Repository Manager
- CVE-2019-7238 Sonatype Nexus Repository Manager Incorrect Access Control
- CVE-2019-9629 Hardcoded credentials in n/a
- CVE-2017-17717 Hardcoded credentials in n/a
- CVE-2026-3199 Nexus Repository 3 - Authenticated Remote Code Execution via Task Property Injection
- CVE-2026-5189 Nexus Repository 3 - Hardcoded Credential in Internal Database Component
Sources
Also known as GHSA-h5r5-2h4m-2rx5.